EDUCATION

• 1987 B.Sc. in Physics, University Paris Denis Diderot, France
• 1988 M.Sc. in Physics, University Paris Denis Diderot, France
• 1992 PhD, Physics, University Paris Denis Diderot, France
• 1993 Post-doctoral research fellow, Ecole Polytechnique Montreal, Canada
• 1993 – 2016 Associate Professor at University Marne la Vallée
2016 – 2020Full Professor, LIED, University Paris Denis Diderot,

CURRENT RESEARCH AREA

• Phase change materials
• Wetting and capillary phenomena in soft matter
• latent heat storage
• dropwise condensation
• evaporative cooling
• urban heat island

AWARDS AND HONORS

• 2019, 1er Prix « Climatelaunchpad 2019 » dans la catégorie Green City Solutions,
• 2017, Prix Fondation National IUT, projet « Bi-eau », développement de condenseur eau de rosée
• 2016, trophée APinnov 2016, pour le brevet « formulation gélifiante utilisée dans le traitement des brûlures provoquées par l'acide fluorhydrique, et son procédé de préparation »,
• 2016, Award Paper, Micro Grooved Surface Improve Dew Collection, colloque HEFAT 2016, Costa del Sol, 11-13 Juillet 2016
• 2010 Innovativ Techniques Prize, of the french society ADEME for research about phase—change material
• 2008 Award paper for “Physical properties of stabilized ice slurry for transport of cold thermal energy” in “ International Scientific Journal for Alternative Energy & Ecology “

ACADEMIC AND INDUSTRIAL COLLABORATIONS

Valeo, Bouygues, St Gobain, Plastic Omnium,Winco Techn.
U.C.L.A (P. Kavehpour), Univ. of Twente (J Snoejer), Boston University (J. Bird)
PUBLICATIONS
58 peer-reviewed publications in international journals, 2 patents, 3 contributed book chapters and 43 communications.

List of recent publications between 2020-2011

A. BARHANI, N. PERINET, M. COSTALONGA,L. ROYON, P. BRUNET, Vortex elongation in outer streaming flows, Experiments in Fluids, accepté Fev. 2020
S. PARISON, M. HENDEL, L. ROYON, (2019). An Updated Method for Quantifying the Cooling Effects of Urban Heat Island Mitigation Techniques. Urban Climate , accepted Fev. 2020
S. PARISON, M. HENDEL,A. GRADOS, K. JURSKI, L. ROYON L., A Lab Experiment for Optimizing the Cooling Efficiency and the Watering Rate of Pavement-Watering. Urban Climate, 31, 2020 https://doi.org/10.1016/j.uclim.2019.100543
S. PARISON, A. GRADOS, M. HENDEL, L. ROYON,A radiative technique for measuring the thermal properties of road and urban materials. Road and Pavement Design, 1–15, 2019 https://doi.org/10.1080/14680629.2019.1661869
M. MENESSES, M. ROCHE, L. ROYON, J. BIRD, Video: The Surfactant-free Persistance of Surface Bubbles in a Volatile Liquid, Phys. Rev. Fluids 4, 100506, 2018 Doi: 10.1103/APS.DFD.2018.GFM.V0057
L. ROYON, J. MERCKX, R. HERBAUT, P. BRUNET, CH. DUPONT, PH. DANTAN, P. FLAUD, G. GUIFFANT, Experimental study of the POP technique, focus on the physical basis of the process, the Journal of Vascular Access, accepted févr 2020
S A BARHANI, L. HUMBERSET, R. OSIPIAN, L. ROYON, K. AZOUZ, A. BONTEMPS, How thermally efficient are chaotic advection mixers? An experimental assessment, Int. J of Thermal Sci., 1, 45, 2019 https://doi.org/10.1016/j.ijthermalsci.2019.106046
J. TROSSEILLE, A. MONGRUEL, L. ROYON, M. G. MEDICI,D. BEYSENS, Roughness-enhanced collection of condensed droplets, European Physical Journal E, 42, 2019 Doi :10.1140/epje/i2019-11905-9
C. ZHANG, X.GUO, P. BRUNET, M. COSTALONGA, L. ROYON, Acoustic streaming near a sharp structure and its mixing performance characterization, Microfluidics and Nanofluidics, 23:104, 2019 https://doi.org/10.1007/s10404-019-2271-5
P. B. BINTEIN, H. LHUISSIER, A.MONGRUEl, L. ROYON, D. BEYSENS, Grooves accelerate dew shedding, Phys. Rev. Letter, 122, 098005, 2019 ttps://doi.org/10.1103/PhysRevLett.122.098005
R. HERBAUT,P. BRUNET, L. ROYON, L. LIMAT, Overhanging shapes of freezing sessile drops under continuous liquid supply, Int. J. Thermal Sci., 140, 135-140, 2019 doi: 10.1016/j.ijthermalsci.2019.02.043
R. HERBAUT, P. BRUNET, L. LIMAT, L. ROYON, Liquid spreading on cold surfaces : Solidification-induced stick-slip dynamics, Physical Review Fluid, 4, 033603, 2019 https://doi.org/10.1103/PhysRevFluids.4.033603
L. BOUSSABA, S. MAKHLOUF, G. LEFEBVRE, L. ROYON, The Palm Kernel Vegetable fat : A low-cost bio-based phase change material for thermal energy storage in buildings, Journal of Building Engineering,21, 222-229, 2019 https://doi.org/10.1016/j.jobe.2018.10.022
S. GAM, P. DECORSE, R. HERBAUT,J. PINSON, L. ROYON, C.MANGENEY, Micro-patterned anti-icing coatings with dual hydrophobic/hydrophilic properties, Journal of Materials Chemistry A, 6, 40, 2018 doi : 10.1039/C8TA06944A
M. HENDEL, S. PARISON, A. GRADOS, L. ROYON, Which pavement structures are best suited to limiting the UHI effect? An experimental laboratory approach, Building & Env., 144, 216-229, 2018 doi : 10.1016/j.buildenv.2018.08.027
S. GAM, J. PINSON, P. DECORSE, Y. LUO, R. HERBAUT, L. ROYON, C. MANGENEY, Diazonium Salt Chemistry for The Design Of Nano-Textured Anti-Icing Surfaces, Chem. Comm.,65, 54 , 8983-8966, 2018 doi : 10. 1039/C8CC02601G
M. HENDEL, S. PARISON, A. GRADOS, L. ROYON, Which pavement structures are best suited to limiting the UHI effect? An experimental laboratory approach, Building & Env., 144, 216-229, 2018 doi : 10.1016/j.buildenv.2018.08.027
R de RUITER, L. ROYON, J. SNOEJER, P. BRUNET, Drop spreading and gelation of thermoresponsive polymers, Soft Matter, 14, 2018 https://dx.doi.org/10.1039/C7SM02540H
I. Boucenna, L. ROYON, P. COLINART, M.A. GUEDEAU-BOUVILLE, A. MOURCHID,"Rheology and Calorimetry of Micro_textured colloidal polycristals with embedded", Journal of Rheology, 64, 883, 2017
G. GUIFFANT, P. FLAUD, L. ROYON, E. BURNET, I. MERCKX, Mechanical characteristics of plasti baseports and impact on flushing efficacy, Medical Device, 10, 11—15, 2017
S A BARHANI, L. ROYON, B. ABOU, R. OSIPIAN, K. AZOUZ, A. BONTEMPS, A phenomenological approach of solidification of polymeric phase change material (PPCMs), J. Applied Physics, 4, 2017
G. SHARAN, A.K. ROY, L. ROYON, A. MONGRUEL, D. BEYSENS, Dew Plant for Bottling Water, Journal of Cleaner Production, 155, 83-92, 2017
M. HENDEL, M. COLOMBERT, Y. DIAB, L. ROYON, Measuring the Effects of Urban Heat Island Mitigation Techniques in the Field: Application to the Case of Pavement-Watering in Paris, Urban Climate, vol 16, 43–58, 2016
S. BARBOURA, J. MEDOUR, M. HABOUSSI, M.S. KACHI, L. ROYON, Predicting mechanical and thermal behavior of multiphase composite containing phase change material (PCM) by micromechanical approaches, Applied Mechanics and Materials, vol 798 pp 430-434, 2015
M. KARKRI, G. LEFEBVRE, L. ROYON, Different phase change material implementations for thermal energy storage, Energy and Climate II : energies for new resources and the climate change, springer, 2015
M. HENDEL, L. ROYON, The effect of pavement-watering method on subsurface pavement temperature, Urban Climate, 14, Part 4, 650–654, 2015
D DJEFEL, S MAKHLOUF, S. KHEDACHE, G LEFEBVRE, L ROYON, Preparation and thermal characterization of stearic acid/olive pomace power composite as a novel form-stable of phase change material for thermal energy storage, Int. J. of Hydrogen energy, 40, 39, 13764–13770, 2015
S. KHEDACHE, S MAKHLOUF, D DJEFEL, G LEFEBVRE, L ROYON, Preparation and thermal characterization of composite “Paraffin/Red Brick” as a novel form-stable of phase change material for thermal energy storage, Int. J. of Hydrogen Energy, 40, 39, 13771–13776, 2015
M. HENDEL, M. COLOMBERT, Y. DIAB, L. ROYON, An analysis of pavement heat flux to optimize the water efficiency of a pavement-watering method, Applied Thermal Eng., 78, 658 – 669, 2015
L. ROYON, L. KARIM, A.BONTEMPS, Optimization of PCM embedded in a floor panel developed for thermal management of the lightweight envelope of buildings, Energy & Buildings, 82, 385 - 390 , 2014
M.G. MEDICI, A. Mongruel, L. ROYON, D. BEYSENS, Edge effects on water droplet condensation, Phys. Rev. E 90, 062403, 2014
T. KAJIYA, P. BRUNET, L. ROYON, A. DAERR, M. RECEVEUR L. LIMAT,A liquid contact line on soft gel surface : dip- coating geometry investigations, Soft Matter, 10, 8888 - 8895, 2014
T. KAJIYA, P. BRUNET, L. ROYON, A. DAERR, T. NARITA, F. LEQUEUX, L. LIMAT, Wetting on Gels: How the Gel Characteristics Affect the Contact Line Dynamics? Interfacial Phenomena and Heat Transfer,1,3, 2014
F. TRINQUET, L. KARIM, G. LEFEBVRE, L. Royon,"Mechanical properties and melting heat transfer characteristics of shape-stabilized paraffin slurry”, Experimental Heat Transfer , 27, 2014
L. KARIM, P. BARBERON, P. GEGOUT, L. ROYON, New phase-change material components for thermal management of the light weight envelope of buildings, Energy & Buildings, 68, Part B, Pages 703-706, 2014
G. GUIFFANT, J. J. DURUSSEL, P. FLAUD, L. ROYON, P. Y. MARCY, J.MERCKX, Power port contrast medium flushing and trapping: Impact of the temperature, an in vitro experimental study, Medical Devices: Evidence & Research Journal. 133-140, 2013
L. ROYON, L. KARIM, A.BONTEMPS, Thermal energy storage and release of a new component with PCM for integration in floors for thermal management of buildings, Energy and Buildings, 63, 29 -35 , 2013
T. KAJIYA, A. DAERR, T. NARITA,L. ROYON, F. LEQUEUX, L. LIMAT, Advancing Liquid Contact Line on Visco-Elastic Gel Substrates: Stick-Slip vs Continuous Motions, Soft Matter, 9, 454-461, 2013
L. ROYON, J.J. DURUSSEL, J. MERCKX, P. FLAUD, J. P. VIGIER; G. GUIFFANT, The fouling and cleaning of venous catheters : a possible optimization of the process using intermittent flushing, Chemical Eng. Research and Design, 820-823, 2011
T. KAJIYA, A. DAERR, T. NARITA, L. ROYON, F. LEQUEUX, L. LIMAT, Dynamics of the Contact Line in Wetting and Diffusing Processes of Water Droplets on Hydrogel (PAAM-PAMPS) Substrates, Soft Matter, 7, 11425-11432, 2011
V. LANGLOIS, W. GAUTHERIN, J. LAURENT, L. ROYON, L. FOURNAISON, A. DELAHAYE, X. JIA, Ultrasonic determination of the particle concentration in model suspensions and ice slurry, International Journal of Refrigeration, 34,1972-1979, 2011
L. Royon, G.GUIFFANT, " Investigation on heat transfer properties of slurry of stabilized paraffin during a melting process”, Energy Conv. Mgt, 52, 1073–1076, 2011
J. Szewczyk, E. Marchandise, P. Flaud, L. Royon, R. Blanc, "Active catheters for the neuroradiology ", Journal of Robotics and Mechatronics, Vol. 23, 1, 105-115, 2010
E. Marchandise, P. Flaud, L. ROYON, J. Szewczyk, R. BLanc, " Thermal and hydrodynamic modelling of active catheter for the neuroradiology", Computer Methods in Biomechanics and Biomedical Engineering, 14, 7,595-602 2011